331430422 has 4 divisors (see below), whose sum is σ = 497145636. Its totient is φ = 165715210.

The previous prime is 331430387. The next prime is 331430431. The reversal of 331430422 is 224034133.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 224034133 = 157 ⋅1426969.

It is a super-2 number, since 2×331430422² = 219692249254196168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331430393 and 331430402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82857604 + ... + 82857607.

It is an arithmetic number, because the mean of its divisors is an integer number (124286409).

Almost surely, 2^331430422 is an apocalyptic number.

331430422 is a deficient number, since it is larger than the sum of its proper divisors (165715214).

331430422 is a wasteful number, since it uses less digits than its factorization.

331430422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165715213.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 331430422 is about 18205.2306219943. The cubic root of 331430422 is about 692.0393506196.

Adding to 331430422 its reverse (224034133), we get a palindrome (555464555).

The spelling of 331430422 in words is "three hundred thirty-one million, four hundred thirty thousand, four hundred twenty-two".